You can use PROC.poll() to find out whether the process has exited yet or not (for instance, in a 'while' loop along with a delay). I don't know what facilities exist to forcibly terminate programs on Windows, though. On Unix, os.kill() can be used to kill a process given its pid. Perhaps some of the functions in the 'win32process' module of win32all can help.
Here's an example for Windows written in C:
http://win32.mvps.org/processes/fkill.html
Jeff
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